diff --git a/tests/pos/i9248.scala b/tests/pos/i9248.scala
new file mode 100644
index 000000000000..edbd23552a36
--- /dev/null
+++ b/tests/pos/i9248.scala
@@ -0,0 +1,8 @@
+class C(var a: Int)
+
+extension (c: C)
+  def foo: Int = c.a
+  def foo_=(a: Int): Unit = c.a = a
+
+val c = C(10)
+val test = c.foo